Who We Are

We are Dependable, Problem Solving, and Committed to our Client's success

Founded in 1996, Montana Banana is a full-service web and mobile app development company based in Seattle, WA.

We are a team of mature experienced computer geeks with an orientation towards online marketing and solving business problems. We are conversion experts who leverage technology to help businesses meet their various goals. We have a well-developed process that keeps our projects streamlined, on budget, and on schedule.

Montana Banana has the right combination of business experience, technical knowledge, and artistic vision to make your company’s website stand out visually and provide you with the web-based tools to make you more efficient.

Work With Us To:


Increase conversion rates through conversion analysis


Enhance the technical systems your site relies upon


Improve internal efficiencies through systems analysis

Our Team

Stewart McCullough

CEO & Founder

Stewart founded Montana Banana in 1996 in his garage (well, in his living room actually). He originally designed and built all the sites himself, but today he manages a team of 10 people who are much better at website design than he is. Stewart now focuses on managing the Montana Banana systems, overseeing the hosting and technical infrastructure, and doing system analysis for clients. Stewart has a BA from Pomona College. In 1998 he also started an e-commerce company www.yixing.com that continues to thrive.

In his personal time, he enjoys being a dad, creating stop-motion animations, building LEGO robots, yoga, running, and reading Carl Jung.

Joe Oppegaard

Chief Technology Officer

Joe started his career on the technical side of things, running tech support for an Internet service provider (ISP). Over the course of the past eighteen years he has actively contributed to the development of a wide array of web projects and, as an avid member of the Open Source Community, he is the primary author of a number of tools popular with Linux administrators. Joe is adept at managing complex projects and his deep understanding of the development process is an asset across a wide variety of Montana Banana client projects.

He likes to play his nylon string guitar, travel through Europe, work on old cars, and hang out at the fire station.

Joe is a Magento Certified Developer.

Mac McCabe

Project Manager

Mac has been successfully managing magazine and web projects since the early 2000s. He is currently pursuing certifications as a Magento Certified Solution Specialist, PMI-ACP®, and PMP®. His larger-than-life personality does take some getting used to, but his focus on marketing, sales, and traffic analysis coupled with unparalleled dedication to his clients' success guarantees Mac will get the job done and get it done right.

Mac has the following Google Certifications

  Adwords Mobile     Google Analytics     Mobile Sites

Jason Kenison

Jason Kenison

Senior Programmer

With a background in both design and development, Jason is able to merge multiple aspects of a project together. A web project or mobile app is more than just an eye catching design or a well built codebase. Jason has been building websites on a variety of platforms for over 15 years and has seen the industry grow and change into what it is now.

Outside of work, he spends time with his son, collects vinyl records, plays video games and enjoys a good science fiction novel.